Gautam Kumar.
Selected Projects

Things I've Built

Production-grade SaaS products with AI integration.

InterviewMinds
★ Featured
InterviewMinds

AI-Powered Mock Interview Platform

A Production-grade AI Mock Interview Platform with 91 features across 18 phases. Features AI-powered interviews via Groq Llama 3.3-70b, real-time ML video proctoring (face-api.js with TensorFlow.js), CRDT collaborative code editor with three-way merge, WebRTC video calls with STUN/TURN + SFU, sandboxed code execution via Piston API, and multimodal voice tone analysis. Built as a Turborepo monorepo with 81 service modules, 38 route files, and 7 MongoDB models.

81 Modules
services
91 Enterprise
features
<500ms AI
latency
18 Phases
phases
React 18TypeScriptNode.js 20ExpressMongoDBRedisGroq LLMface-api.jsWebRTCSocket.IOGraphQLBullMQTurborepo
Satark-AI
★ Featured
Satark-AI

Deepfake Audio Detection & Voice Verification

A production-grade deepfake detection platform built as a Turborepo microservices monorepo. Detects synthetic audio via Wav2Vec2 + MFCC spectral forensics, deepfake images via Hugging Face Inference API (face deepfake + AI-image detectors) through a Cloudflare Worker proxy, and verifies speaker identity using ECAPA-TDNN voice biometrics with 192-dim embeddings and cosine similarity matching. Ships as a PWA with real-time microphone monitoring, analytics dashboard, and PDF report exports.

3 AI Models
models
Multi-Modal
pipeline
90B Params
vision
192-dim
biometrics
React 18TypeScriptFastAPIPyTorchHonoPostgreSQLHugging FaceCloudflare WorkersTurborepoSpeechBrain
TexFolio
★ Featured
TexFolio

Premium AI-Powered LaTeX Resume Builder

A modern SaaS that combines real LaTeX PDF rendering with LLM intelligence. Features a LangGraph multi-agent resume coach (ATS scoring), LinkedIn PDF import via Llama 3.3, FAANG-ready templates, drag-and-drop editor, Organizations with RBAC (Owner → Admin → Editor → Viewer), BullMQ async PDF generation with progress tracking, distributed Redis rate limiting, Razorpay payments, and GDPR compliance (data export + PII anonymization).

FAANG-Ready
templates
LangGraph Coach
ai
Native LaTeX
pdf
4-Role Orgs
rbac
React 19TypeScriptHonoMongoDBLangGraphGroqBullMQRedisLaTeXDockerRazorpay
SwadKart
★ Featured
SwadKart

Hyper-Local Food Delivery PWA

A production-grade multi-vendor food delivery platform with 4-role ecosystem (Admin, Restaurant, Delivery, Customer). Features AI chatbot (Groq LLM) for food recommendations, voice search in English & Hindi, biometric auth (WebAuthn fingerprint/FaceID), real-time GPS delivery tracking via Socket.io, Razorpay payments (UPI/Cards/Wallets/COD), gamification (streaks, SwadCoins, badges), group ordering with bill splitting, and PWA with offline support. Built with 30+ API routes, 14 Mongoose schemas, and enterprise security (fraud detection, rate limiting, GDPR).

4 Personas
roles
30+ APIs
routes
14 Models
schemas
PWA + i18n
features
React 19Node.js 22Express 5MongoDBRedux ToolkitSocket.IORazorpayFirebaseWebAuthnGroq LLMPWAi18next